package com.example.app;

public class MainClass {

    private ClipModel mClip;
    private ClipViewDraw mClipViewDraw;
    private ClipView mClipView;

    public void refreshThumbnail() {
        String path = mClip != null ? mClip.getFilePath() : null;

        if (TextUtils.isEmpty(path)) {
            if (getClipViewDraw() != null) {
                getClipViewDraw().clearDrawData();
                mClipView.postInvalidate();
            }
            return;
        }

        if (getClipViewDraw() != null) {
            getClipViewDraw().refreshUi(this, path, mClip.getTrimIn(), mClip.getTrimOut());
        }
    }

    public void saveRelativeData(ClipModel clip) {
        if (clip == null) {
            throw new IllegalArgumentException("clip 不能为 null");
        }
        
        mClip = new getClipViewDraw(clip);
    }

    public ClipViewDraw getClipViewDraw() {
        return mClipViewDraw;
    }

    public void setClipViewDraw(ClipViewDraw draw) {
        this.mClipViewDraw = draw;
    }

    public void setClipView(ClipView view) {
        this.mClipView = view;
    }

    // 模拟 TextUtils 类
    private static class TextUtils {
        public static boolean isEmpty(String str) {
            return str == null || str.isEmpty();
        }
    }

    // 模拟 ClipViewDraw 类
    public static class ClipViewDraw {
        public void clearDrawData() {
            System.out.println("Drawing data cleared.");
        }

        public void refreshUi(MainClass mainClass, String path, int trimIn, int trimOut) {
            System.out.println("Refreshing UI with path: " + path);
            System.out.println("Trim In: " + trimIn + ", Trim Out: " + trimOut);
        }
    }

    // 模拟 ClipView 类
    public static class ClipView {
        public void postInvalidate() {
            System.out.println("View invalidated.");
        }
    }
}